:root {
    --bg-primary: #0a0a0a;
    --bg-secondary: #111111;
    --bg-card: #1a1a1a;
    --bg-glass: rgba(26, 26, 26, 0.8);
    --text-primary: #ffffff;
    --text-secondary: #b3b3b3;
    --text-muted: #888888;
    --accent-blue: #2563eb;
    --accent-blue-light: #3b82f6;
    --accent-purple: #8b5cf6;
    --border-color: #333333;
    --border-light: #444444;
    --shadow-dark: 0 4px 20px rgba(0, 0, 0, 0.3);
    --shadow-blue: 0 4px 20px rgba(37, 99, 235, 0.2);
    --gradient-blue: linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Baloo Bhaijaan 2', sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

.bg-animation {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    background: 
        radial-gradient(circle at 20% 20%, rgba(37, 99, 235, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(139, 92, 246, 0.1) 0%, transparent 50%);
    animation: bgFloat 15s ease-in-out infinite alternate;
}

@keyframes bgFloat {
    0% { transform: translateY(0px); }
    100% { transform: translateY(-20px); }
}

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
    z-index: 10000;
    padding: 1rem 0;
    transition: all 0.3s ease;
    height: 70px;
}

.navbar.scrolled {
    background: var(--bg-secondary);
    box-shadow: var(--shadow-dark);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 1rem;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    text-decoration: none;
    color: var(--text-primary);
    font-weight: 700;
    font-size: 1.25rem;
}

.logo-img {
    width: 40px;
    height: 40px;
    border-radius: 8px;
    box-shadow: 0 0 15px rgba(37, 99, 235, 0.3);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 1rem;
    align-items: center;
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    padding: 0.5rem 1rem;
    border-radius: 25px;
    transition: all 0.3s ease;
    font-size: 0.9rem;
}

.nav-link:hover,
.nav-link.active {
    color: var(--text-primary);
    background: var(--gradient-blue);
    box-shadow: var(--shadow-blue);
}

.language-switcher {
    display: flex;
    gap: 0.3rem;
    margin-left: 1rem;
    flex-wrap: wrap;
}

.lang-btn {
    color: var(--text-secondary);
    text-decoration: none;
    padding: 0.3rem 0.6rem;
    border-radius: 15px;
    font-size: 0.75rem;
    transition: all 0.3s ease;
    border: 1px solid var(--border-color);
    white-space: nowrap;
}

.lang-btn.active,
.lang-btn:hover {
    color: var(--text-primary);
    background: var(--accent-purple);
    border-color: var(--accent-purple);
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 1.25rem;
    cursor: pointer;
    padding: 0.5rem;
}

.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 6rem 1rem 2rem;
    position: relative;
}

.hero-content {
    max-width: 800px;
    animation: fadeInUp 1s ease-out;
}

@keyframes fadeInUp {
    0% {
        opacity: 0;
        transform: translateY(30px);
    }
    100% {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-title {
    font-size: clamp(2rem, 6vw, 4rem);
    font-weight: 800;
    margin-bottom: 1rem;
    background: var(--gradient-blue);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1.2;
}

.hero-subtitle {
    font-size: clamp(1rem, 3vw, 1.25rem);
    color: var(--text-secondary);
    margin-bottom: 2rem;
    line-height: 1.6;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.btn {
    padding: 1rem 2rem;
    border: none;
    border-radius: 25px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: all 0.3s ease;
    font-family: inherit;
}

.btn-primary {
    background: var(--gradient-blue);
    color: var(--text-primary);
    box-shadow: var(--shadow-blue);
}

.btn-secondary {
    background: transparent;
    color: var(--accent-blue);
    border: 2px solid var(--accent-blue);
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(37, 99, 235, 0.3);
}

.section {
    padding: 4rem 1rem;
    max-width: 1200px;
    margin: 0 auto;
}

.dev-page {
    padding-top: 6rem;
}

.section-title {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    font-weight: 700;
    text-align: center;
    margin-bottom: 2rem;
    margin-bottom: 2rem;
    color: var(--text-primary);
}

.section-title i {
    color: var(--accent-blue);
    margin-left: 0.5rem;
}

.about-content {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 15px;
    padding: 2rem;
    text-align: center;
    margin-top: 2rem;
}

.about-content p {
    font-size: clamp(1rem, 2.5vw, 1.2rem);
    color: var(--text-secondary);
    line-height: 1.7;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

.feature-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 15px;
    padding: 2rem 1.5rem;
    text-align: center;
    transition: all 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-5px);
    border-color: var(--accent-blue);
    box-shadow: var(--shadow-blue);
}

.feature-icon {
    font-size: 2.5rem;
    color: var(--accent-blue);
    margin-bottom: 1rem;
}

.feature-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.feature-text {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.6;
}

.dev-guide {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 15px;
    padding: 2rem;
    margin-top: 2rem;
}

.dev-guide h3 {
    color: var(--text-primary);
    font-size: clamp(1.25rem, 3vw, 1.75rem);
    margin-bottom: 2rem;
    text-align: center;
}

.dev-guide h3 i {
    color: var(--accent-purple);
    margin-left: 0.5rem;
}

.steps {
    display: grid;
    gap: 1.5rem;
    margin: 2rem 0;
}

.step {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1.5rem;
    transition: all 0.3s ease;
}

.step:hover {
    border-color: var(--accent-purple);
    box-shadow: 0 4px 20px rgba(139, 92, 246, 0.2);
}

.step h4 {
    color: var(--text-primary);
    font-size: 1.1rem;
    margin-bottom: 1rem;
}

.step h4 i {
    color: var(--accent-purple);
    margin-left: 0.5rem;
}

.step p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.6;
}

.code-block {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    overflow: hidden;
    margin: 1rem 0;
}

.code-header {
    background: var(--bg-secondary);
    padding: 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--border-color);
}

.code-title {
    color: var(--text-primary);
    font-weight: 600;
    font-size: 0.9rem;
}

.copy-btn {
    background: var(--accent-blue);
    color: var(--text-primary);
    border: none;
    padding: 0.5rem 1rem;
    border-radius: 6px;
    cursor: pointer;
    font-size: 0.8rem;
    transition: all 0.3s ease;
}

.copy-btn:hover {
    background: var(--accent-blue-light);
}

.code-content {
    padding: 1.5rem;
    overflow-x: auto;
}

.code-content pre {
    color: var(--text-secondary);
    font-family: 'Courier New', monospace;
    font-size: 0.85rem;
    line-height: 1.5;
    margin: 0;
    white-space: pre-wrap;
    word-wrap: break-word;
}

.requirements-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1rem;
    margin: 1rem 0;
}

.requirement-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    padding: 1.5rem;
}

.requirement-card h5 {
    color: var(--accent-blue);
    font-size: 1rem;
    margin-bottom: 1rem;
}

.requirement-card ul {
    list-style: none;
    padding: 0;
}

.requirement-card li {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
    padding-right: 1rem;
    position: relative;
}

.requirement-card li::before {
    content: "✓";
    color: var(--accent-blue);
    font-weight: bold;
    position: absolute;
    right: 0;
}

.file-types {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    margin: 1rem 0;
}

.file-type {
    background: var(--gradient-blue);
    color: var(--text-primary);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 500;
}

.best-practices {
    background: var(--bg-secondary);
    border-right: 4px solid var(--accent-blue);
    padding: 1.5rem;
    margin: 2rem 0;
    border-radius: 0 10px 10px 0;
}

.best-practices h4 {
    color: var(--accent-blue);
    margin-bottom: 1rem;
}

.best-practices ol {
    padding-right: 1.5rem;
    color: var(--text-secondary);
}

.best-practices li {
    margin-bottom: 0.5rem;
    font-size: 0.95rem;
}

.checklist {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    padding: 1.5rem;
    margin: 1rem 0;
}

.checklist h4 {
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.checklist ul {
    list-style: none;
    padding: 0;
}

.checklist li {
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
    padding-right: 2rem;
    position: relative;
    font-size: 0.95rem;
}

.checklist li::before {
    content: "☐";
    position: absolute;
    right: 0;
    font-size: 1.1rem;
}

.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.contact-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 15px;
    padding: 2rem;
    text-align: center;
    transition: all 0.3s ease;
}

.contact-card:hover {
    transform: translateY(-5px);
    border-color: var(--accent-purple);
    box-shadow: 0 4px 20px rgba(139, 92, 246, 0.2);
}

.contact-icon {
    font-size: 3rem;
    color: var(--accent-purple);
    margin-bottom: 1rem;
}

.contact-title {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.contact-desc {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    font-size: 0.95rem;
}

.social-btn {
    background: var(--accent-purple);
    color: var(--text-primary);
    text-decoration: none;
    padding: 0.75rem 1.5rem;
    border-radius: 25px;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: all 0.3s ease;
    font-size: 0.9rem;
}

.social-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(139, 92, 246, 0.3);
}

.scroll-top {
    position: fixed;
    bottom: 2rem;
    left: 2rem;
    width: 50px;
    height: 50px;
    background: var(--gradient-blue);
    border: none;
    border-radius: 50%;
    color: var(--text-primary);
    font-size: 1.2rem;
    cursor: pointer;
    opacity: 0;
    transform: translateY(100px);
    transition: all 0.3s ease;
    z-index: 999;
}

.scroll-top.visible {
    opacity: 1;
    transform: translateY(0);
}

.scroll-top:hover {
    transform: translateY(-3px);
}

.loading {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--bg-primary);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    transition: opacity 0.5s ease;
}

.loading.hidden {
    opacity: 0;
    pointer-events: none;
}

.loading-logo {
    width: 80px;
    height: 80px;
    margin-bottom: 1rem;
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.7; transform: scale(1.05); }
}

.loading-text {
    color: var(--text-primary);
    font-size: 1.2rem;
    margin-bottom: 1rem;
}

.loading-spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--border-color);
    border-top: 3px solid var(--accent-blue);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

[dir="ltr"] .requirement-card li::before {
    left: 0;
    right: auto;
}

[dir="ltr"] .requirement-card li {
    padding-left: 1rem;
    padding-right: 0;
}

[dir="ltr"] .checklist li::before {
    left: 0;
    right: auto;
}

[dir="ltr"] .checklist li {
    padding-left: 2rem;
    padding-right: 0;
}

[dir="ltr"] .section-title i {
    margin-right: 0.5rem;
    margin-left: 0;
}

[dir="ltr"] .step h4 i {
    margin-right: 0.5rem;
    margin-left: 0;
}

[dir="ltr"] .dev-guide h3 i {
    margin-right: 0.5rem;
    margin-left: 0;
}

[dir="ltr"] .best-practices {
    border-left: 4px solid var(--accent-blue);
    border-right: none;
    border-radius: 10px 0 0 10px;
}

[dir="ltr"] .best-practices ol {
    padding-left: 1.5rem;
    padding-right: 0;
}

[dir="ltr"] .language-switcher {
    margin-right: 1rem;
    margin-left: 0;
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        background: var(--bg-secondary);
        flex-direction: column;
        padding: 1.5rem 1rem;
        border-top: 1px solid var(--border-color);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: all 0.3s ease;
        box-shadow: var(--shadow-dark);
        z-index: 9999;
        max-height: calc(100vh - 70px);
        overflow-y: auto;
    }

    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }

    .nav-menu li {
        margin: 0.75rem 0;
        width: 100%;
    }

    .nav-link {
        display: block;
        text-align: center;
        padding: 1rem;
        font-size: 1rem;
        width: 100%;
        border-radius: 8px;
        transition: all 0.3s ease;
    }

    .language-switcher {
        justify-content: center;
        margin: 1rem 0 0 0;
        width: 100%;
        padding-top: 1rem;
        border-top: 1px solid var(--border-color);
    }

    .mobile-menu-btn {
        display: block;
    }

    .hero {
        min-height: 100vh;
        padding: 6rem 1rem 2rem;
    }

    .hero-content {
        width: 100%;
        max-width: 100%;
    }

    .hero-buttons {
        flex-direction: column;
        align-items: center;
        gap: 1rem;
        width: 100%;
    }

    .btn {
        width: 100%;
        max-width: 280px;
        justify-content: center;
    }

    .section {
        padding: 3rem 1rem;
    }

    .dev-page {
        padding-top: 5rem;
    }

    .features-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .feature-card {
        padding: 1.5rem;
    }

    .dev-guide {
        padding: 1.5rem;
    }

    .step {
        box-sizing: border-box;
        width: 78vw;
        max-width: 600px;
        padding: 1rem;
        margin: 0 auto;
    }

    .code-content {
        padding: 1rem;
    }

    .code-content pre {
        font-size: 0.8rem;
    }

    .requirements-grid {
        grid-template-columns: 1fr;
    }

    .file-types {
        justify-content: center;
    }

    .contact-grid {
        grid-template-columns: 1fr;
    }

    .contact-card {
        padding: 1.5rem;
    }

    .code-header {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }

    .copy-btn {
        width: 100%;
    }
}